KS3 Physics: Terminal Velocity Quiz

What are the two main forces acting on a falling object?

• Electric force and weight

• Weight and air resistance

• Gravity and friction

• Magnetism and air resistance

What is terminal velocity?

• The speed at which air resistance is zero

• The maximum speed of a falling object when forces are balanced

• The speed at which an object stops moving

• The speed at which an object starts falling

What happens to air resistance as an object falls faster?

• It disappears

• It decreases

• It remains constant

• It increases

What is the effect of a larger surface area on terminal velocity?

• It has no effect

• It increases terminal velocity

• It decreases air resistance

• It decreases terminal velocity

What happens when a skydiver opens their parachute?

• Their terminal velocity increases

• Their air resistance decreases

• Their surface area decreases

• Their terminal velocity decreases

What happens to the forces on an object at terminal velocity?

• They decrease

• They are balanced

• They are unbalanced

• They increase

What is the role of air resistance in free fall?

• It slows down the object

• It speeds up the object

• It acts in the same direction as motion

• It has no effect

Which factor does NOT affect terminal velocity?

• Surface area of the object

• Color of the object

• Shape of the object

• Mass of the object

When a skydiver just jumps out of the plane

• There is no air resistance

• Air resistance is very small (compared to weight)

• Air resistance is similar to weight

• Air resistance is bigger than weight

When a skydiver has been falling for a small time (but has not reached terminal velocity)

• There is no air resistance

• Air resistance is very small (compared to weight) and has not changed since the start of the fall

• Air resistance is smaller than weight but has gotten closer in size compared to weight

• Air resistance is equal to weight